CVE-2026-98323
Description
In the Linux kernel, the following vulnerability has been resolved: RDMA/siw: Bound fragmented header copies by the remaining length siw_get_hdr() can receive an extended DDP/RDMAP header across more than one TCP callback. The first callback may receive most of the header, while the next one still limits the copy to hdrlen - MIN_DDP_HDR instead of the number of missing bytes. This makes the destination move past the end of the header and overwrite the receive state, including fpdu_part_rcvd. A later callback can then use a negative fpdu_part_rcvd value as a copy offset, which creates an OOB write. Use the number of header bytes already received when calculating the next copy length.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
Propose a mitigation on Community Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
References
- https://git.kernel.org/stable/c/262dcd809723723ed8a4e05437ec7e9c21a8f17e
- https://git.kernel.org/stable/c/2c6fbcf4bfac0b2b186acc8d91154c0fa24468a7
- https://git.kernel.org/stable/c/8628f8ebf41669302513fb3f0bf0eba38b226742
- https://git.kernel.org/stable/c/9ff797e516dbc1ecb73701ec4c24055712d44411
- https://git.kernel.org/stable/c/af9f5b474a260ad23ffb9793d716a5e3bbce3b48
- https://git.kernel.org/stable/c/b72dcfb9bf1f0f0147cda03dc59e4002a315067f
- https://git.kernel.org/stable/c/e6bdfdf3bcb02d0d626a45e8c98b7e63d2fddf9d
- https://git.kernel.org/stable/c/eb4d7a946970469b3ab0c762432bf161d5b0836c
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.